In epidemiology, an infection is said to be endemic in a specific population or populated place when that infection is constantly present, or maintained at a baseline level. The term describes the dis
Human alphaherpesvirus 3 virion − a herpesvirus known to infect humans. It causes chickenpox (varicella), a disease most commonly affecting children, teens, and young adults, and shingles (herpes zoster) in adults.
A pandemic is an epidemic of an infectious disease that has a sudden increase in cases and spreads across a large region, for instance multiple continents or worldwide, affecting a substantial portion
Endemic (epidemiology)
…that is spreading or a previously endemic disease whose infection rate is increasing significantly. Seasonal flu frequently appears as an epidemic. Pandemic An epidemic affecting a very large part of the world, generally multiple countries or multiple continents. Seasonal flu is sometimes a global pandemic…
Early in the COVID-19 pandemic, convention centers (pictured here) were deemed to be ideal sites for temporary hospitals, due to their existing infrastructure (electrical, water, sewage). Hotels and dormitories were also considered appropriate because they can use negative pressure technology.
Depiction of the burial of bodies during the Black Death, which killed up to half of Eurasia's population in the 14th century.
American Red Cross workers carry a body during the 1918–20 "Spanish flu" pandemic.
Social distancing in public